casey



J. CASEY.

. BOX Mmmm MACHINE.

artented Ju1y'15, '1890.

(N0 Model.) 7 Sheets-Sheet I.

lffgl In vena? J lwwf (No modell) 7 Sheets-Sheet 2. J. CASEY.

yB0X MAILING MACHINE.

Patented July 15; 1890,

27 fawamwm, A, l@ @www` (No Model.) 7 Sheets-Sheet 3,. J. CASEY.

BOX NAILING MAGHINE.

No. 432,477. Patented July 15, 1890,

(No Model.) 7 Sheets-Sheet 4.

' J. CASEY.

BOX NAILING- MACHINE.

Patented July 15, 1890.

fNo Model.) 7 Sheets-Sheet 6.

J. CASEY, BOX NAILING MACHINE. No.'432,477.

Y azmdmm, MM hifi? r11 ag (No Model.) 7 Sheets-Sheet 7.

J, CASEY.

, BOX NAILING MACHINE. No. 432,477. Batented July; 15, 1890,.

@bia-rn 07 UNiTED STATES PATENT Ormea.

JEREMIAII CASEY, OF EDGElVATER, NEIVV JERSEY, ASSIGNOR TO THE CASE YMACHINE AND SUPPLY COMPANY, OF NEIV YORK, N. Y.

SPECIFICATIGN forming peut of Letters Patent No. 432,477, dated July 15,1890.

Application filed October 9, 1889.

To all whom t may concern! Be it known that I, JEREMIAH CASEY, acitizenof the United States, and a resident of Edgewater, in the county ofBergen and State 5 of New Jersey, have invented certain new an d usefulImprovements in Box-Nailin g Machines; and I do declare the following tobe a full, clear, and eXactdescription of the invention, such as willenable others skilled in the art to which it appertains to make and usethe sam e, reference being had to the accompanying drawings, and toletters of reference marked thereon, which form a part of thisspecification. y

In the drawings, Figure l is a front elevation of a box-nailing machineembodying my improvements. Fig. 2 is a side elevation. Fig. 3 is a rearelevation, certain parts being omitted. Fig.l 4 is a central verticalsection having some ot' the parts shown in a different position to thatin Fig. l. Fig. 5 is a horizontal section taken on the line X X, Fig. 3,and showing certain parts. Fig. G is a plan of the nail-feed boxdetached. Fig. 7 is a vertical section of the same, taken on the line YY, Fig. 6. Fig. 8 is a rear elevation, partly in section, of the saine.Fig. 9 is aplan of certain nail-feedways and delivery mechanism. Fig. 10is a vertical section of the lattertaken on the line Z Z, Fig. 9. Fig.l1 is an enlarged view of aportion of a picker bar or feeding device.Fig. l2 is a vertical section of one of the chucks for holding the nailsin position to be acted on by the drivers. Fig. 13 is a rear View of thesame. Fig. lei is a side View of a certain friction-clutch and ad jaeent parts. Fig. l5 is a vertical section of the same, showing adriving-pulleyin connection therewith. Fig. 16 is a rear viewof a devicefor straightening crooked boards, capable of being attached to themachine and worked automatically. Fig. 17 is a side view of the same,showing a portion of the same in section. Fig. I8 is a top view thereof,also showing a portion of the frame in section.

Similar letters refer to similar parts throughout the several views.

A designates the frame-work, herein shown as made in sections rigidlysecured together.

B is a table composed of two sections B B2,

Serial No. 326,477. `(No model.)

the latter being supported by rods b, secured thereto and passingthrough lugs formed on the section B, whereby it lnay be drawn out toincrease the capacity of the table.

A b indicates bars secured to the section B2 55 and fit-ted to slide ingrooves in the section B', forming a flush surface therewith. The tableis vertically adjusted by means of the screw B3, engaging a nut b2,secured in a lug b3. Motion is imparted tothe screw by means of ahand-wheel h, secured to a sleeve b5, loosely mounted to slide on androtate a rod Z1, having a bevel-wheel at its extremity engaging abevel-wheel secured to the screw. The sleeve b5 and rod h6 are supportedin arms 197, extending downwardly from the table, and are connected bymeans of a stud bs, secured to the rod Z1, working in a slot b9 in thesleeve. The sleeve b5, with its slot and stud connection to the shaft orrod b, permits the sliding of the hand-wheel blin under the table B, outof the way when not in use, and slid out from thereunder for convenienceot' mani pulation. The surface of the table contains rectangularopenings Z110, (shown in Fig. 5,) through which nails may fall and bereceived in drawers b, sliding on cleats beneath the table.

Z312 is a rib cast on the front of the table and Iitted to slide in agroove a in the frame, by which said table is guided and held in ahorizontal position. y

Z113 is a bar secured to the rib 1112 and extending on each side of thegroove a to bear against the inner side of the frame, and thereby holdthe table iirmly against the front surface of the same.

C C are nail-chucks, and are each provided with an extension c, adaptedto tit and slide between rails D D', and are secured thereto at anydesired distance apart by pins c', loosely inserted in any of a seriesof holes (l in the rail D, and passed vthrough a corresponding hole inthe extension c. The rails D D are secured to end plates D2, fitted toslide a short distance vertically in ways formed in the frame A for thepurposeof bringing the chucks down close on the work and withdrawing thesame therefrom after the nails have been inserted.. rlhe downward motionof the rails is Ioo limited by stops a', while the upward motion of thesame is limited by the stop-pins d', projecting therefrom and strikingon the under side of the frame portion a2, which has a brace a3 securedthereto.

(Z2 (Z2 are rods extending from the upper side of the slide-plates D2,and provided with nuts d3, vertically adjust-able thereon, and againstwhich certain moving parts et the machine act to lift the rails, ashereinafter described.

d* is a bar secured to the rails D D to serve as a brace. y

c2 c2 are cylindrical jaws sliding in openings extending through thebody of the chuck and meeting at the center of the bore ci", at whichpoint curved recesses c" are formed in the upper side to receive anddirect the nails centrally through openings The opening c, through theupper pair of jaws, is snlliciently large to allow the largest-sizenails used to fall through, while that of: the lower pair of jaws issmaller in. diameter than the diameter of the nail, which thereforerests thereon, as shown in Fig l2. lVhen short nails are used of adiameter smaller than the opening c5 through the bottom pair of. jaws,they will be suspended by their heads in the curved recess in the upperpair of jaws, and their points will rest on the bottom of the recess inthe lower jaws. The jaws c2 are maintained in a central position bymeans ot springs ci, inserted in sockets and bearing against curvedplates c7.

C8 are pins projecting' on one side of the jaws and fitted to slide ingrooves c in the chuck. They serve to limit the inward motion of thejaws to a central position and prevent any rotary motion thereof.

C10 is a portion of a converging tube capable ot rocking on a pin en,attached to asp ring cl2, secured to the chuck, and passing through anopening in an extension el of the eonveyer, inserted between -the chuck,and a plate c, secured to the latter.

015 is a shoulder concentric with the center of the pin c, and uponwhich is fitted a corresponding shoulder ol the conveyor, by which meansa smooth surface is obtained at the joint of the two parts when theconveyor is rocked. 3y drawing out the free end of the spring d2 the pinc11 is withdrawn from the extension c, and the conveyor may therefore bedetached when required from the chuck.

E E are the drivers, having head portions c carried in T-shaped groovestorined in the bottom of a bar E', along which they may be moved tocorrespond with the position ot' the chucks C. At about the center ofthe harE the lower portion ot the groove is enlarged to admit of theinsertion and withdrawing of the heads of the drivers. The ends ot thebar E are secured to end plates E2, fitted to slide in the grooves ofthe frame portion a2 against the end plates D2 of the rails D D.

e e are lugs formed on the plates E2 E2, and through which pass looselythe rods (Z2 (Z2.

c2 c2 are lugs projecting from the plates E2 E2, and into which aresecured rods e" e, connected te a cross-head F, the latter being guidedhyarodj", working in bearings f f.

F is a connecting-rod pivoted to the crosshead F and reciprocated by acrank F2, de riving motion from the driving-pulley G. At cach. rotationotl the crank the drivers E are forced down through. the chuck onto thework, driving the nails therein. The jaws c2 are forced apart by thenail-heads acting on the concave sides ol the recess cHl during thepassage of the drivers. As the end plates are raised after eachoperation of the drivers, the lugs c' c come in contact when near theirupper position with the nuts d, thereby lifting the rails D D and chucksfrom the work vto facilitate the removal and insertion el' the latter.The pins d prevent additional npward motion of the latter parts thatmight otherwise ensue from the impetus imparted thereto by the lugs e.

ll is a nail-feed box adapted to rock on pivots a a, which have ascrew-threaded conneetion with lugs a", iormed on the frame A. This boxis rocked by means of the crank l, secured to a shaft i', derivingmotion from the main shaft Gv through the gear-wheels ffl', 2, t, and itThe motion el' the crank is transmitted to the box through theconnectingbars 7L and roclelevers h2 713, pivoted to the frame. Thelever h2 has an arm 7L, to which a rod is connected, having a weight 71"snspended thereto, by which the weight of the box and its contents isapproximately connterbalanced. Additional weights h may he added whennecessary, and for this purpose a stud 7N is provided.

rlhe gear-wheels are so proportioned in diameter that the crank I makesbut one quarter-revolution to one revolution of the crank F2, so thatthe box ll, which is shown tilted to its highest position in Fig. 4,will be brought to a position indicated by dotted outlines at h3 alterthe first downward and upward motion of the drivers. At the next motionof the drivers thebox will be brought to its lowcrmost position, as at7L", also shown dotted. lly this movement ot the box the nails arecaused to roll to and fro within the same and arrange themselves ingrooves contained therein.

The box ll is composed ot four portions 71 rigidly secured together, anda bottom por# tion constructed in sections concave in crosssection, eachsection having a pair ol' downwardly-extending arms on its under side.Some of these sections are stationary, while others are horizontally adjustable to form a series of grooves hx, having a width corresponding tothe diameter of the nails to be used, and in which grooves the nails arecaused to arrange themselves and be snspcndcd by their head portionswithin the box.

IOO

Ion'

IIO

The two side portions 7W h2o of the bottom may be cast integral with thesides of the box.

7F31 indicates intermediate stationary sections having their arms 7L7141 secured to bars 7L, whose ends are secured to the arms 7L,

.beneath the two outside portions of the box,

by which means these sections are supported andheld stationary. Thesections H171,71 have their arms 7181 rigidly secured to bars 71?, whilethe sections hm have their arms 7L similarly secured to bars hw. Thebars hm k12, attached to the arms of the movable sections, are supportedon pins 71.13, projecting on both sides of two of the arms 7V of thestationary sections and passing through slotted openings in the bars 7am7tlg, by which mot-ion sidewise thereof is afforded to form thegrooveshX of more or less extent in Width. Each pair of movable sectionshas a lap-joint hltwhere they meet, having a rounded and smooth finishon their upper surfaces to allow nails to slide freely over them. Theside edges of these movable sections are adjusted to and form the edgesof the stationary sections to form grooves by means of levers 7115,secured to a shaft 77,1, journaled in the arms 7L41 of the stationarysections, and one of these levers is provided with a handle 7tlg.

71W hls indicate pins projecting from the lever and extending throughslotted openings in the arms 7u into bars 7tlg, rigidly secured to thelevers hm, and having a slotted opening to admit of the shaft 7L16passing through the same. On turning the handle in one direction thebars hf 7L2 are reciprocated in opposite directions, causing all thegrooves to be enlarged simultaneously, while the reverse mot-ion of thelink will diminish their width of opening. In order to regulate thisdegree of opening, I provide a stop h2o, secured to the arm 7L, andbetween which and the side of the lever H15 a nail of the diameter to beused is inserted, as shown dotted in Fig. 7.

7L21 is a spring having one end attached to the handle hl" and the otherend to the pin, and serves to hold the nail in place, and consequently auniform width of grooves is inz'lintained.

rlhe surface-of the sections is curved both longitudinally andtransversely, forming depressions 7L at the forward ends of saidsections, as clearly seen in Fig. 7, in order to scatter the nails andcause them to fall in the grooves when the box is rocked.

71.22 h22 are openings in the rear side of the box, and vthrough whichthe latter may be emptied when tilted.

71,23 7b2 are covers for the openings 7W, sliding in grooves andprovided with finger-pieces having extensions to enter notches in theside of the box, whereby the said covers are supported.

'lt-2l are grooves for receiving partitions 7W when it is desired to usenails of different sizes simultaneously, each size being thereforerequired to be kept separated in the box.

h2 are stops to prevent the nails suspended in the front portion of thegrooves from sliding backwardly therein when the box is rockeddownwardly.

L is a device for clearing the front portion of the grooves of nailswhich may have assumed a position tending' to clog the passage of nailsthrough the orices 7028 in the front of the box. It consist-s of a bar7, pivoted to the sides of the box and having arms Z', concave on theirunder side and arranged to cover the grooves hx at a sufficient distanceabove the same to allow of the free passage of the nail-heads. Shouldnails enter this concave opening above the grooves irregula-rly, as endforemost, the exit from the box is clogged, and tourem edy this the arms7 are adapted to rock a short distance upwardly when the box has nearlyreached its lowermost position and then return to its normal positionimmediately after the box has commenced to ascend. It is operated bymeans of an arm 72 on the bar 7, extending through the front of the boxand upwardly in front of the same. The latter portion contains acam-surface 73, between which and the front. of the box is a pin 74,extending from an arm 75, pivoted to the frame-work at 76. As the boxapproaches its lowermost position the pin 74 comes in contact with thecam-surface Z3, causing the arm 72 to be forced outwardly, and therebyrotating the bar, and consequently raising the arms 7 and releasing allnails that may have got in irregularly.

Z7 is a spring' serving to restore the arms Z to their lower positionduringthecoinmencement ofthe upward motion of the nail-box.

7b2T are stop-pieces pivoted to swing over the orifices 7L?S to preventthe feed of nails from any one or more grooves 7L when not required. Thetwo outside orifices in Fig. l

are thus shown closed.

K denotes mechanism for delivering the nails after passing from thefeed-box to a picker bar M, which picks a set of nails therefrom eachtime the drivers ascend. This mechanism consists of a series of bars,some of which are stationary while others are movable, in order to formgrooves corresponding in width to those in the nail-box for the passageof nails of the required diameter.

7c are the stationary bars secured to the frame A, which has upwardlyexten ding posts a5, between which the nails slide. These posts havetheir top surface inclined sufficient-ly to allow the heads of the nailsresting on the plates forming the grooves to slide down the same bygravity. The plates 7.32 are rigidly secured to a cross-bar 7e3, whilethe plates 7a are secured to a cross-bar 755, both of which bars arefitted to slide in keepers 7e, secu red to the posts a5.

7t'7 is a lever pivoted to the frame and connected by pins to the bars7.-? 7.5, whereby motion imparted to the bars 7e3 will cause the bar 7Jlto move in an opposite direction. By this means the width of all thegrooves may IOO ITO

be enlarged simultaneously orsimultaneousl y diminished, as desired.

7f3 is an ad justingscrew having` a neck pertion working` in a bearingla", so as to prevent longitudinal movement of: the same, and isscrew-threaded into the bearing R11.

7tlg is a lug on the bar 7c3 to serve as a gage to obtain the properwidth of opening in the grooves or nail-slides, and between which lugand the keeper 7.1i a nail 'n of the required diameter is placed. Thestops its kl" will then prevent any accidental displacement of theplates.

The picker-barM is supported in guides m, secured to the frame, and iscaused to slide a short distance erosswise of the machine by means ot awedge-shaped cam m', secured to one of the end plates E2 and acting on aroller m2, attached to the picker-bar M. The motion of the latter in areverse direction is caused by a spring mi, surroundingl a fixed rod miand bearing on a cross-barili, having one end resting against the' frameand its other end against the picker-barril. The rod 'mil is providedwith nuts,whereby the tension of the springs may be varied.

rlhe pickcnbar M is iliade in two sections 071.67727, a part ot` whichis shown onV an enlarged scale in Fig. ll. The section m extends theentire length of the device and has the anti-friction roller mijournaled to it at one end, and the bar of bearing against it at itsother end.

ons indicates openings opposite the nailslides for the passage of nails.

mi designates angular plates detachably secured to the upper surface ofthis section, in order that they may be renewed when nee essary.

'lhe top section nl.7 is preferably made in two parts mm m, in orderthat nails et two ditte-rent diameters may be used simultaneously, itdesired. These two portions ol' the sections mv7 are loosely connectedto the bottom section by pins mi?, itting slots arranged at such anangle that when the said portions are drawn forward parallel and angulargrooves 772m are formed, through which the nails are iforeed and allowedto drop through openingsmtinto suitable receptacles beneath the bottomsection. The side edges of? the two sections normally coincide and areheld in this position bysprings m1, attached to the parts mi" fm. andhaving their ends secured to the trame. In order to set the picker-barfor use, the upper section is drawn Al`orward and nails of the diameterto be used inserted at 011V, causing the pointed end of the plates nl."to projectbeyond the adjacent side of the upper section. Nails maytherefore slide against the latter, as shown at 011,1,Fig. 9,and on thecrosswise motion of the bar M will be carried to the opening mt, whilethe edge m acts as a stop to the advance of other nails, as shown inFig. l1, which also shows in dotted line the position of the plate 7i',Land nails n. By this yielding action of the upper section nails in anyparticular groove that may vary a trifle in diameter or form maybeconveyed by the picker-bar to the chucks without injury to the parts oraffecting the l'eed olf nails in the other nail slides or grooves. Thennails oi two different y diameters are to be used simultaneously, onepart of the upper section is set by two nails of one size and the otherpart by two nails of the other size.

fa ya are are-shaped plates rigidly seen red to the lower section mopposite each nail-slide and afford a support and guide for the tubesn?, havingv tunnel shape openings to receive nails from thepicker-bar asthey fall through the openings m8. These tubes have a slidingconnect-ion with other tubes n, secured to the base portion el.

al are setstuds secured tothe front side of the tunnels and passingloosely through the plates n', in which they are secured by a split orother pin. By this arrangement the tubes may be swung sidewise tocorrespond with the position of their respective chucks.

l is a device applied to operate on each nail-slide independentlyfoi-stopping the feed of nails from any number of them at regularintervals during the strokes ot the drivers, and is used chiefly whennailing the bottom pieces otl a box to the side and end pieces. It isessential to provide means to vary the number ot nails used at eachstroke of the drivers, for the reason that more nails are required tosecure the bottom piece to the end portions than to the side portions ofa box. The former may require eight nails,while four will sullice l'orthe sides. It is also essential to provide means whereby the bottompiece may be either nailed to both end pieces first and then to the twoside pieces, or to an end piece first and then to a side piecealternately. It may be done either way by the followingdescribed camsact-ing inconjunetion with the device P.

The device l consists of a bar 1'), mounted to rock in bearings al,attached to the f rame, and having` arms p secured thereto and extendingupwardopposite each nail-slide. The arms p' are provided with ordinaryspringbarrels at their upper extremities.

pgare rods pointed at their tips to enter the grooves of the nail-slidesin front of the nails and prevent them from descending when otherwisefree to do so. These rods pass centrally through the spring-barrels andhave pins extending through a slot in the same, which slot hasa'shoulder at both ends, whereby on turning the rod p2 slightly by itshead portion the pin will engage with a shoulder and be locked in aposition to either stop the feed of nails or not elteet the same whenrocked toward them. lydisengaging-thepin from the foremost shoulder-inany one or more of the spring-barrels the rod p2 is forced rearwardlytoward. the nail-slides by the spring within the barrel and stops thefeed ot' the nails when the device is rocked. The bar 19 TCO IIO

is rocked by a cam p3, secured to the shaft 1' and acting on a rollerp4, connected to a rod p5, pivoted to an arm p of the bar p. The bottomend of the bar p5 is bifurcated to pass over the-shaft t', which acts asa guide for it. Two forms of cams p3 p7 are here shown, forming onepiece capable of being removed from the shaft and replaced in a reverseposition, so that either one of the cams may be used. The cam p3 has twohigh and two low faces, each extending around one-quarter the circu mference, and their peri pheries are concentric with the center of theshaft. By the use of this cam the feed of nails is stopped from any oneor more nail-slides at every alternate stroke of the drivers. The cam p7has one high and one low face, each extending around one-half thecircumference, and by its use the feed of nails is simultan eouslystopped during two strokes of the drivers in succession and allowed tofeed during two strokes alternately. lVith the former cam the bottomportion of a box may be nailed first to a side and then to an endalternately, while with the` cam pit-he bottom is nailed to the twosides lfirst and afterward to the two ends. Then this automatic actionis not required, the device is rendered stationary by means of a hookp9.

p1) is an arm mounted to rock on a stud p11), and is acted on by aspring p11, Vagainstastop p12, to hold the cams 123197 on the shaft andfacilitate their reversal when required. 1

Q is a gage against which the work is placed to be operated on. It iscaused to follow the vertical movements of the chucks, in order thatportions of boxes of thin material may not slip over it when the chucksare raised. It has also ahorizontal movement to and from the face of themachine. The vertical motion to this gage is caused bythe cross-head Facting on rods Q, working in guides Q, and having blocks Q2 securedthereto. These blocks are provided with grooves, in which loosely slidebars Q3, connected to the gage Q, The latter is free to stop by gravityuntil the bar rests on the bottom of slots a in the frame. When thecross-head is nea-r .its upper position, it acts on the rods Q, carryingthe gage Q upwardly with it. The horizontal movement of this gage may beeffected automatically or by hand. In nailingportions of boxes together,each portion being of equal thickness, no horizontal movement isrequired; but when the sides of boxes are of thinner material than theends some adjustment is necessary after each stroke of the hammers whennailing the bottom portions on, in order to centralize the differentthicknessesunder the chucks. To effect this,l provide the followingmechanism: Q'1 is a shaft journaled in the t rame A and provided witharms Q5, which bear against the ends of the bars Q3. QG is an armsecured to the shaft Q4, and has pivotally connected thereto a slottedsegment Q'f, provided with a graduated index.

Qs :is a rod connected to an arm of the 1nent,and pivotall'yconnected atits lower extremity7 to a frame Q19, carrying a pair of rollers Q10,either on'e of which is capable of being swung in a. position to beacted on by cams Q11 Q12, similar in construction to those alreadydescribed.

When the gage is required to move in and out horizontally andalternately with each stroke of the hammers, the cam Q12 is used, andwhen the gage is required to remain in a forward position during twostrokes of the hammer and back during two strokes alternately the camQ11 is used. The change is effected by means of a handle extending fromthe frame Q, and which is capable of being sprung over projections in asector connected to the bar Q8, and thereby held in either gcsition.

Q13 is a link pivotally connected to the bar QS1 and to a supportsecured to the frame, and serves to support the bar Q5. When thishorizontal movement of the gage Q is not required, a spring-actuatedstop Q1'L is arranged to enter a recess in the joint-pin of the bar QS,thereby holding` the latter in its uppermost position, and thereforefree from the action of the cams. To set this gage in order tocentralize the thinnest sides of the box under the chucks, the screw ofthe segment Q7 is loosened and the latter rotated until the pointer onthe stationary arm is opposite a mark on the graduated scalecorresponding to the thickness of the side pieces of the box. Duringthis time the roller Q10 will rest on the high part of the cam. Thescrew is then tightened and the gage will be advanced to the properposition each time afterward automatically to snit any number of sidesof similar thickness. The ends of the box, which are usually thickerthan the sides, may be centralized under the chuck by another gagehereinafter described, or this may be effected by the same gage, asfollows:

R is a cam secured to a shaft o", having a handle r, also securedthereto. The shaft o" is journaled in a slotted segment r2, secured tothe 'frame A. The cam R may be rotated and secured in position by meansof a screw passing through the slot in the segment into the handle. rlhesegmentis provided with a graduatedscale, and the handle has a pointerwhereby the proper position of the cam to limit the backward movement ofthe gage to correspond with the thickness of the material is readilyeffected.

Q15 are springs tending to draw the gage rearwardly when released by thecams.

S is a gage adapted to be used for boxes, having one or both of its endsset in beyond the side portions. It projects through the face of themachine in two parts, connected at the back.

s indicates rollers su pportin g the rear of the gage. rThis gage is setforward in any position by means of a crank" s', connected to a shaft32, having a slotted segment 33 secured thereto. The shaft s2 issupported in a bracket IOD IIO

s4, secured to the frame and provided with an arm having a pointer inconnection with a graduated scale on the slotted segment. The gage issecured in position by a screw T is a gage extending across the machineat a suitable distance above the table, so as to leave a space betweenits lower edge and the surface ot said table, and it may be used inconjunction with either of the above gages. It is secured to-slotted endpieces t, working on studs and also on a shaft t', extending across themachine aud having levers t secured thereon, provided with pins whicheuter slotted openings lf". One of the levers t2 is provided with anarm, having a hand-piece t" attached thereto, with a pointed extremityto indicate on a graduated scale the proper position ot the gage tocentralize boards ot any thickness. lly the use of this gage the sidepieces of a box maybe nailed to the end pieces in cases where one of theends is set in, as shown dotted in Fig. 4. The gages S and T are shownin line to adjust the position of the end centrally under the chuck,while the gage Q isset to adjust the distance the side is to project.After one side has been nailed it is turned over to have the other sidesecured, and, as shown, the opening below the gage T allows theprojection of the side to pass through. lVhen nailing the opposite flushend ot' the box, the gage Q is advanced to a position tiush with theother two gages.

T is a treadle mounted on bars t, secured by setscrew in sockets t, thelatter being mounted on a shaft t7, journaled in the frame. The bars trest on tiattened portions ot' the shaft and impart motion thereto ondepressing the treadle. A lever secured to the shaft and jointed to apost serves to operate a lever t3, fulcrumed to a stationary support.

t is a spring to balance the weight et the treadle when extendedoutwardly, and works in conjunction with a spring attached to the leverS to lift the treadle.

V is a clutch adapted to transmit motion from the driving-pulley G tothe machine during one complete revolution ofthe former, andautomatically to disconnect and allow the driving-pulley to become aloose pulley. It consists of a central portion rand an annular plateyr', both secured to the shaft G.

U2 is a sleeve having segmental portions projecting within a recess inthe hub of the pulley.

r3 indicates rollers, which on rotatingl the sleeves are carried up onthe high part ot' camsurfaces iu the portion t', thus bringing them incontact with the hub of `the wheel and causing motion to be transmittedfrom the pulleyT to the shaft.

et is an annular groove extending around the face et the sleeve, andwithin which is placed oneor more coil-sjniugs 1*", having one endfastened to a pin projecting from the plate fr and the other endattached to a pin secured to the sleeve. This spring tends to rotate thesleeve and carry the rollers up on the high part of the cam. The sleevehas a {nojection r, against which acts a Iyielding stop device,consisting oi a lever rl, pivoted to a stud fI'Rand having a rod fni,eontaininga head portion rl", working in a recess in the lever. A springfr tends to press the head portion against a step-shoulder om. tdi" is aspring tending to press the stop constantly against the periphery of thesleeve.

t is a rod pivoted to the bar tAq and extending through a slottedopeuingin the alm of the stop-lever fr?. Uf to allow a steel plate r1,secured to the arm fr", to enter, whereby on depressing the rod 1f bythe treadle the stop is drawn out of engagement with the projection of;the Sleeve. The latter is then t'ree to turn by the action ot thecoil-springs causing the rollers to malte a trictional contact betweenthe pulley and the shaft.

`irlis a rod project ing from the shaft, which on turning will strike onthe rod u and lleelt it sutticiently to allow the stop-lever e7 to disengage theretroni and bear against the sleeve, in order to stop the motionof the latter as soon as the projection makes contact therewith.

' if is a foot-lever adapted to lock the parts and prevent accidentalstarting ot' the machine.

The spring u, being connected to the rod rl". serves to draw it towardthe clutch.

V is a device tor imparting a backward motion to the machine, andconsists ot a slide-piece rl, .fitting a recess iu the hub ot the wheeland having a pin rm, extending through a slot lf2? and connected by aspring r2 to a support. This spring tends to keep the slide 1:1 tromei'igaging a recess. in a collar (7, secured to the shaft G.

G2 indicates apertures in the pulley tor the insertion of a lever torotate the same. `\Vhcn it is required to reverse the motion of themachine, in order to rectify any disarrangement of parts, the slide rl"is inserted in the recess ot' the collar and the spring r2 detachedtherefrom. This clutch at'tords a usctnl substitute for power when thelatter is not obtainable, since by disconnecting the spring r2,actuatiugthe stop/1d, and inserting a'lever in one of the apertures G2the machine'can be operated by impartin a to-andiro motion to the wheel,after the manner ota ratchet-drill.

\V is a nail-supply box resting on supports yw. un are pins projectingfrom thebox to cnter notches in the arms of the support to admit of thebox being tilted and emptied.

O is a device for drawing boards that may be warped straight against theface ot' the machine, and is adapted to be attached to the machine whenrequired. It consists ota bar o', mounted to slide in a groove formed ina carrier-bar o2 and projecting through slots a in the frame. It isprovided with a roller o and drawn against; a cam-surface ol by means ofa spring o. The bar o2 is piv- This rod is notched at;

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oted at o3 to abracket o4, secured to the frame, and has at its frontend downwardextending lugs o5, between which works the upper end of alever o, secured to ashatt o7. 'lhis shaft 1s rocked in one direction bymeans of alever o8 and weight o, and in the other direction by an arm010, extending from the cross-head F, which engages a collar o11 on arod 012, pivotally'counected to the said lever 0S. o13 is a bar slidingin ways formed in the baro', and 1s adj ustably connected thereto.

The operation of the device is as follows: As the cross-head leaves itsuppermost position, as shown in Fig. 1G, itpermits the weight o9 torock` the carrier-bar o2 on its pivot, causing the bar o to sliderearwardly against the cam o1G by reason of the spring o, therebycausing' the bar o13 to impinge on the bentout end portions of theboards, and draw the same flat against the face of the machine, afterwhich the drivers, having descended far enough to reach the nails in thechucks, will drive the latter in the work. As -the crosshead approachesits upper position it will come in contact with the collar ou andrestore the parts to their normal position, as shown in Fig. lt. Two ofthese devices are used, one on each side of the machine.

Having described this invention, what I claim, and desire to secure byLetters Patent, is-

l. In a box-nailing machine, the feeding box or holder having a seriesof stationary and movable bottom sections, arms connected to saidsections and bars, two of which are connected to the arms of the movablesections and supported on pins projecting` on the sides of two of thearms of the stationary botto m sections, and passing through slottedopenings in the said two bars, substantially as set forth.

2. In a box-nailing machine, the feeding box or holder comprising seriesof separate bottom sections having between them feeding-slots providedwith stops or offsets near the front of said box, substantially asspecitied. i l

In a box-nailing machine, the feeding box or holder having a series ofmovable and stationary concave bottom sections, the edges forming theridges between which having lapping joints, sul'istantially as setforth.

4. In a box-nailing machine, the feeding box or holder having a seriesof concavebottom sections, which are also form ed with downward-curvedportions or depressions at their forward ends, substantially as setforth.

5. In a box-nailing machine, the feeding box or holder, having a seriesof stationary and movable bottom sections, arms connected thereto, bars,two of which are connected to the arms of the movablesections andsupported on pins projecting on the sides of two of the arms of thestationarybottom sections and passing through slotted openings in thesaid two bars, and the levers applied to an arm of a stationary sectionand adapted to actuate said two bars of the arms of the movablesections, substantially as set forth.

, G. In a box-nailing machine, the feeding box or holder having a seriesof stationary and movable bottom sections, arms connected thereto, bars,two of which are connected to the arms of the Imovable sections andsupported on pins projecting on the sides of two of the arms of thestationary bottom sections and passing through slotted openings in thesaid two bars, the levers, one havingahan'dle, and the spring connectedto said handle and to one of said pins, substantially as set forth.

7. The colnbination, in .a box-nailing machine, of the sets of chucks,each consisting of spring-pressed jaws or cylinders having opposite ormeeting concavities and apertures, the apertures ofthe upper set otchucks being larger than the apertures of the lower set of chucks,substantially as set forth.

8. In a boxnailing machine, the combination, with the chutes anddrivers, of the two sets of chucks having apertures of differentcapacities, substantially as set forth.

f). In a box-nailing machine, the combination of the chucks, the chutesconnected to said chucks, the rails having connection with said chutes,the end plates secured to said rails, and guideways in thesupportiiig-frame, said end plates sliding vertically a limited distancein said guideways, substantially as set forth.

lO. In a box-nailing machine, the combination of the chucks, the chutesleading to the chucks, the rails having connection with said chutes, theend plates secured to said rails, stops to limit the downward movementofthe rails, pins carried by one of the said rails, andthesupporting-frame having a portion against which said pins strike tolimit the upward movement of said rails, the guide-rods having stop-nuts at their upper ends, the drivers carried by a cross bar or headsecured to end plates of the rails, said end plates of the driver crossbar or head having lugs through which pass said guide-rods,substantially as set forth.

ll. In a box-nailing machine, the combination, with the nail-feedingbox, of the clearing device arranged over the nail slots or grooves,which consists ot a pivoted bar having arms concave on the under sideand an arm havinga cam-surface, arocking arm having a pin engaging thecam-surface of the latter arm, and a spring controlling or returning thedevice to its original position, substantially as set forth.

12. The combination, with the nail-feeding box or holdeigof thepicker-bar comprising the two main sections or plates arranged parallel,and one havin endwise movement upon the other, and a series ofinterspaced oblique passages, which passages connect withdischarge-openings, below which are applied arcshaped plates, to whichare loosely connected cond noting-tubes having a sliding connection withtubes applied to the upper ends of the IOO IIO

